Titanium Blind Flanges - High-Integrity Sealing Solutions For Critical Systems
Titanium Blind Flanges are solid closure components designed to seal the ends of piping systems, effectively isolating sections of piping and enabling safe maintenance, testing, and inspection without fluid flow. Unlike other flange types that connect piping, blind flanges provide a completely sealed barrier that enhances system integrity under pressure, temperature, or corrosive service conditions.
Manufactured from high-grade titanium alloys, these blind flanges combine the unique corrosion resistance and strength-to-weight benefits of titanium with precision forging and machining, resulting in reliable closure hardware for demanding pipeline and process applications.
Specification
| Parameter | Specification |
|---|---|
|
Material |
Titanium Gr2,Gr7,Gr12, WPT2,WPT7,WPT12,Nickel201,SS,HasteC276,Monel400 |
|
Standard |
ANSI,EN1092,JIS,BS,DIN,UNI,GOST,SABS,ASTM B16.5,ASTM B16.9 |
| Size Range | DN 10 – DN 2000 / 1/2″ – 80″ |
| Pressure Classes | ANSI Class 150 – 2500 / PN6 – PN40 |
| Facing Types | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
| Manufacturing | Precision forging & CNC machining |
| Surface Finish | Pickled, polished, or per customer spec |
| Testing | Dimensional check, mechanical/chemical properties, NDT on request |
Material Grades & Standards
TSM Technology supplies titanium blind flanges in a variety of high-performance alloy grades based on your service needs:
- Grade 2 Titanium - Excellent general corrosion resistance and fabrication ease
- Grade 5 (Ti-6Al-4V) - Higher strength where mechanical loads are significant
- Specialty Titanium Alloys - Available based on specific environmental or design requirements
All blind flanges manufactured by TSM conform to international pressure and quality standards such as ASTM F136 / ASTM B265 / ASME B16.5 and can be supplied with full Material Test Certificates (MTC).
|
PN |
DN |
D |
K |
J |
H |
T |
A |
F |
|
En1092-1-05 PN16 Blind Flange |
10 |
90 |
60 |
14 |
4 |
16 |
40 |
2 |
|
15 |
95 |
65 |
14 |
4 |
16 |
45 |
2 |
|
|
20 |
105 |
75 |
14 |
4 |
18 |
58 |
2 |
|
|
25 |
115 |
85 |
14 |
4 |
18 |
68 |
2 |
|
|
32 |
140 |
100 |
18 |
4 |
18 |
78 |
2 |
|
|
40 |
150 |
110 |
18 |
4 |
18 |
88 |
3 |
|
|
50 |
165 |
125 |
18 |
4 |
18 |
102 |
3 |
|
|
65 |
185 |
145 |
18 |
4 |
18 |
122 |
3 |
|
|
80 |
200 |
160 |
18 |
8 |
20 |
138 |
3 |
|
|
100 |
220 |
180 |
18 |
8 |
20 |
158 |
3 |
|
|
125 |
250 |
210 |
18 |
8 |
22 |
188 |
3 |
|
|
150 |
285 |
240 |
22 |
8 |
22 |
212 |
3 |
|
|
200 |
295 |
295 |
22 |
12 |
24 |
268 |
3 |
|
|
250 |
405 |
355 |
26 |
12 |
26 |
320 |
3 |
|
|
300 |
460 |
410 |
26 |
12 |
28 |
378 |
4 |
|
|
350 |
520 |
470 |
26 |
16 |
30 |
438 |
4 |
|
|
400 |
580 |
525 |
30 |
16 |
32 |
490 |
4 |
|
|
450 |
640 |
585 |
30 |
20 |
40 |
550 |
4 |
|
|
500 |
715 |
650 |
33 |
20 |
44 |
610 |
4 |
|
|
600 |
840 |
770 |
36 |
20 |
54 |
725 |
5 |
|
|
800 |
1025 |
950 |
39 |
24 |
62 |
900 |
5 |
Quality Assurance
Every titanium blind flange is subjected to a comprehensive quality control process, including dimensional inspection, surface quality and finish evaluation, mechanical property verification, chemical composition analysis, and hardness and pressure testing when required. In addition, we provide complete quality assurance documentation such as Material Test Certificates (MTC), inspection reports, and full traceability records to support engineering validation, regulatory requirements, and procurement compliance.
How Titanium Blind Flanges Work
Blind flanges are installed at one end of a pipe, valve, or pressure vessel outlet to create a secure, leak-proof seal. They are commonly used for:
System isolation during equipment shutdowns
Pressure testing of pipelines and vessels
Tight closure points where future access is limited
Dead-end sealing in pipeline designs
Their solid design allows them to withstand internal pressure and external load conditions without fluid flow, making them essential in both fabrication and maintenance stages.
Manufacturing Process
| Process Stage | Description |
|---|---|
| Melting | Vacuum Arc Remelting (VAR) |
| Forming | Forged / Hot Forged |
| Machining | CNC precision machining |
| Heat Treatment | Annealed or solution treated |
| Surface Finish | Pickled / Machined / Polished |
Why Titanium Blind Flanges Are Preferred
Titanium exhibits a range of performance advantages that make its blind flanges especially suitable for harsh industrial environments:
Superior Corrosion Resistance
Titanium's stable oxide film protects against oxidation and aggressive media- including chlorides, seawater, acids, and alkaline environments-ensuring longevity where carbon and stainless steels often fail.
Weight Savings with Structural Strength
Titanium blind flanges offer significant weight reduction compared to steel equivalents while delivering mechanical strength compatible with ASME/ASTM pressure class requirements, benefitting applications where weight and load matter.
Reduced Long-Term Maintenance
Outstanding corrosion performance means longer service intervals, fewer replacements, and reduced downtime in chemical plants, offshore installations, and power systems.
Typical Industrial Applications
Titanium blind flanges are widely used where sealing reliability and corrosion performance are critical:
Chemical & Petrochemical
Used to cap process lines with aggressive fluids, preventing leaks and ensuring safe maintenance cycles.
01
Power Generation
Installed at boiler and heat exchanger connections to isolate systems for inspection and cleaning.
02
Oil & Gas / Offshore
Critical in pipeline terminations and subsea systems exposed to seawater and high chloride environments.
03
Aerospace & High-Purity Systems
Used in fluid transfer and test loops where material contamination must be minimized..
04
Certification
Engineering & Procurement Considerations
When specifying titanium blind flanges, engineers commonly evaluate:
- Pressure class and thickness tolerance
- Operating temperature range
- Material grade based on corrosive media profile
- Machining finish and dimensional precision
TSM Technology provides technical support to help you choose the correct flange configuration, grade, and pressure rating for your unique application.
Operating Conditions
| Parameter | Range |
|---|---|
| Service Temperature | −196°C to 600°C (grade dependent) |
| Corrosion Resistance | Excellent in seawater, chloride, acid media |
| Application Media | Gas, liquid, chemical fluids |
Package
Contact us
Whether you're designing new systems or upgrading existing installations, TSM Technology delivers precision-engineered titanium blind flanges built for performance, durability, and long service life. Contact us today at info@tsm-titanium.com for custom sizing, material grade consultation, and competitive lead times.
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